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2 Sheets-Sheet I.

(No Model.)

W. R. ABRAMS. SASH. PASTENER.

7 m a 8 O Y 8 T E 1 N N w o 0 T No Model.) v 2 Sheets-Sheet 2.

W. R. ABRAMS.

} SASH FASTENER. No. 370,229. Patented Sept. 20, 1887.

WITNESSES INVENTOR 2 @JM BY mm ATTORNEYS.

Fries.

WILLIAM R. ABRAMS, or ELLENSBURG, WASHINGTON TERRITORY.

SASH-FASTENER.

SPECIFICATION forming part of Letters'Patent No. 370,229, dated September 20, 188?.

(No model.)

T0 (622 whom it may concern:

- Be it known that 1, WILLIAM R. ABRAMS, of Ellensburg, in the county of Kittitass, \Vashington Territory, have invented a new and Ira proved \Vindow-Fastener, of which the following is a full, clear, and exact description.

My invention relates to an improvement in window-fasteners, and has for its object to provide a fastener which will engage the edge of the window at any point and effectually prevent the upper sash from being drawn down or the lower sash from being raised, yet not interfere in the least with the operation of either sash in an opposite position.

The invention consists in the construction and combination of the several parts, as will be hereinafter fully set forth in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional view illustrating the application of my fastener to a window, taken on line w x of Fig. 2; and Fig. 2 is an edge View of the window-casing with my fastener in elevation. Fig. 3 is a perspective detail View of the operating rods and dogs, illustrating their connection. Fig. 4 is aplan View of the escutcheon and device for preventing the operating-rods from being tampered with when the window is partially raised. Fig. 5 is a vertical section through line y y of Fig. 4, and 6 a horizontal section on line 2 z of Fig. 4.

In carrying the invention into effect the window-frame is provided with metal casings A A, inserted in the sashways of the upper and lower sash, C O, the one casing, A, near the lower edge of the upper sash, as shown in dotted lines, Fig. 1, and the other casing, A, near the top of the lower sash, as indicated by positive lines in the same figure.

The casings have an open front, a, and are secured in the window-frame by screws or otherwise, the said front being flush with the said sashwaysas shown in Fig. 2.

\Vithin each casing, transversely the same, a dog, B, isjournaled, the free end of each dog being adapted in its normal position to be held outside the casing in contact with the edge of the sash by a spring, b, secured at one side in the head of the dog and bearing upon the inner rear side of the casing. The positions of the dogs 13 are necessarily reversed in the two casings, the free sharp end of the dog in the casing A for the upper sash pointing upward and the dog in the casing A of the lower sash downward, as illustrated in Fig. l.

The prime means employed for keeping the dogs in engagement with the edge of the sash consists in a flat spring, D, attached at one end to the curved outer edge of the dogs, near the sharp ends thereof, which springs are curved slightly outward and their free ends carried beyond the pivotal portion of the dogs outside the casing. bus the curved free ends of the springs, havinga constant bearing upon the edge of the sash, operate to keep the dogs in contact with said edges also.

As a means for withdrawing the dogsin the casing and releasing the sash, rods 15 E are provided, having a thumb-plate, e, at one end. In the application of the rods E E, the said rods, at their inner ends, are entered suitable apertures in the window-frame and inserted in a proper transverse recess, f, in the head of the dog, where they are retained in position and the dog held securely thereto by a set-screw, f passing through the latter to a bearing upon the rod, as shown in Fig. 3. The inner ends of the rods are made to project beyond the dog, forming an axis,f, which axis isjournaled in the casing, the outer ends of the rods being held in position by a suitable cscutcheon, G.

If found desirable,the small spring I may be omitted, as ordinarily the flat springD is sufficient to keep the dogin engagement with the sash.

It will be observed that the dogs at all times bear normally against the sash, and that should an attempt be made to lower the upper sash or raise the lower one the said dogs piercing the edges ell'ectually prevent such manipulation. If found desirable to free the sash, by pressing upward upon the thumb-plate of the rod E, the dog is brought within the casing and the lower sash may be easily raised, and by pressing downward upon the thumb-rest of the rod E the connected dog is also brought within the casing and the upper sash may be lowered.

IOO

It is evident that the sash may be held locked at any distance from the top or bottom sertion of a knife or other flat article between the dog and the sash to open the window from the outside when locked from within.

To provide against a possibility of tam pering with the rods E E from the outside when the window is held slightly raised for ventilation, a lock-bolt, M, is provided the escutcheon G, adapted to extend longitudinally the same between said rods,which is accomplished in the following manner: A longitudinal slot, m, is cut in the escutcheon nearer one edge than the other, and of a length equal to the distance between the projecting ends of the rods E E, and a stepped bolt, M, is held to slide in said slot by means of a spring, m, passing through the inner end thereof and attached to the under face of the escutcheon, as shown in Fig. 6.

Normally the bolt is projected outward by the spring m, the inner step or shoulder, 12, engaging the side of the slot m, retainingv it in a given position. When the bolt is in its normal position, and an attempt is made to openthe window from the outside, when partly projecting at its free curved end outward and upward through said opening in the front of the casing, substantially as set forth.

2. In a sash-fastener, the combination, with the dog-operatinglevers or rods having thumbpieces adapted to be pressed toward each other, of a bolt projecting between thethumb-pieces and locking them, substantially as set forth.

3. The combination, with the frame and sash of a window, of the casings A A,provided with an open front, a, dogs B, journaled in said casing, having a flat spring,D,secured to their outer edge, rods E E, provided with thumb plates 6, secured to said'dogs, and a spring-actuated lock-bolt, M, intervening said thumbplates e, substantially as shown and described, whereby the sash may be held in a partiallyopened position with safety, as herein set forth.

4. The combinatiomwith the frame and sash of a window,of the casings A A,provided with an open front, a, rods E E, journaled at one end in the casing and the other end provided with thumb-plate e, journaled in an escutcheon, G, dogs B,secured upon said rods,having a spring,D,attaehed to one edge and a spring, b, secured to the opposite edge, and a lockbolt, M, intervening the said thumb-plates e, substantially as shown and described, and fo the purpose herein set forth.

WILLIAM R. ABRAMS. 

